Transmission of downlink feedback information with downlink control information for multi-cell scheduling

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) associated with a DCI format for shared channel scheduling on a set of cells, wherein the DCI is associated with a cell radio network temporary identifier (C-RNTI) and a configured scheduling radio network temporary identifier (CS-RNTI). The UE may decode the DCI to identify a scheduling on the set of cells or to identify downlink feedback information (DFI) based at least in part on a determination of whether the C-RNTI or the CS-RNTI satisfies a cyclic redundancy check (CRC). Numerous other aspects are described.

What is claimed is: 
     
       1. A method of wireless communication performed by a user equipment (UE), comprising:
 receiving downlink control information (DCI) associated with a DCI format for shared channel scheduling on a set of cells, wherein the DCI is associated with a cell radio network temporary identifier (C-RNTI) and a configured scheduling radio network temporary identifier (CS-RNTI), and wherein the DCI format includes a carrier indicator field corresponding to the C-RNTI and the CS-RNTI; and 
 decoding the DCI to identify a scheduling on the set of cells or to identify downlink feedback information (DFI) based at least in part on a determination of whether the C-RNTI or the CS-RNTI satisfies a cyclic redundancy check (CRC). 
 
     
     
       2. The method of  claim 1 , wherein the CS-RNTI satisfies the CRC, and
 wherein the DCI is configured for activation, release, or retransmission for a single cell in a downlink semi-persistent scheduling scenario or an uplink configured grant scenario. 
 
     
     
       3. The method of  claim 2 , wherein the single cell is based at least in part on a cell configured with downlink semi-persistent scheduling or configured with an uplink configured grant from the set of cells for which the DCI format for shared channel scheduling is associated. 
     
     
       4. The method of  claim 2 , wherein the single cell is based at least in part on a received indication of the single cell. 
     
     
       5. The method of  claim 1 , wherein the CS-RNTI satisfies the CRC, and
 wherein the DCI is configured for activation, release, or retransmission for one or more cells in a downlink semi-persistent scheduling scenario or an uplink configured grant scenario. 
 
     
     
       6. The method of  claim 5 , wherein the one or more cells is based at least in part on a subset of the set of cells for which the DCI format for shared channel scheduling is associated. 
     
     
       7. The method of  claim 5 , wherein the one or more cells includes at least one cell other than a group of cells monitored for receiving the DCI. 
     
     
       8. The method of  claim 1 , wherein the DCI includes a configured grant DFI for shared channel transmissions on a single cell. 
     
     
       9. The method of  claim 8 , wherein the single cell is based at least in part on a mapping of the carrier indicator field to a carrier. 
     
     
       10. The method of  claim 1 , wherein the DCI includes a configured grant DFI for shared channel transmissions on one or more cells. 
     
     
       11. The method of  claim 10 , wherein the one or more cells are based at least in part on a mapping of the carrier indicator field to one or more carriers. 
     
     
       12. The method of  claim 10 , wherein the DCI includes a hybrid automatic repeat request (HARQ) acknowledgment (ACK) bitmap for the one or more cells. 
     
     
       13. The method of  claim 12 , wherein a first set of HARQ process indices for a first cell, of the one or more cells, are mapped in a static order and concatenated to a second set of HARQ process indices for a second cell, of the one or more cells, to form the HARQ ACK bitmap. 
     
     
       14. The method of  claim 12 , wherein a first HARQ process index for the one or more cells forms a first sub-bitmap, of the HARQ ACK bitmap, which is concatenated to a second sub-bitmap corresponding to a second HARQ process index for the one or more cells to form the HARQ ACK bitmap. 
     
     
       15. The method of  claim 1 , wherein the DCI includes at least one transmit power control (TPC) command field for at least one uplink shared channel. 
     
     
       16. The method of  claim 15 , wherein the at least one TPC command field is a single TPC command field applicable to each serving cell for which hybrid automatic repeat request (HARQ) acknowledgment (ACK) information of the at least one uplink shared channel is included in the DCI. 
     
     
       17. The method of  claim 15 , wherein the at least one TPC command field is a set of TPC command fields applicable to a group of cells for which hybrid automatic repeat request (HARQ) acknowledgment (ACK) information of the at least one uplink shared channel is included in the DCI. 
     
     
       18. The method of  claim 15 , wherein the at least one TPC command field includes a first TPC command applicable to a single cell for which hybrid automatic repeat request (HARQ) acknowledgment (ACK) information is included in the DCI and a second TPC command applicable to a group of cells for which HARQ ACK information is included in the DCI. 
     
     
       19. The method of  claim 1 , wherein one or more trailing bits in the DCI are set to zero based at least in part on the DCI identifying the scheduling on the set of cells or identifying the DFI. 
     
     
       20. The method of  claim 1 , wherein the DCI is a single DCI. 
     
     
       21. A method of wireless communication performed by a network entity, comprising:
 transmitting, to a user equipment (UE), downlink control information (DCI) associated with a DCI format for shared channel scheduling on a set of cells, wherein the DCI is associated with a cell radio network temporary identifier (C-RNTI) and a configured scheduling radio network temporary identifier (CS-RNTI), and wherein the DCI format includes a carrier indicator field corresponding to the C-RNTI and the CS-RNTI; and 
 communicating with the UE based at least in part on a scheduling on the set of cells or downlink feedback information (DFI) decoded from the DCI based at least in part on a whether the C-RNTI or the CS-RNTI satisfies a cyclic redundancy check (CRC). 
 
     
     
       22. The method of  claim 21 , wherein the CS-RNTI satisfies the CRC, and
 wherein the DCI is configured for activation, release, or retransmission for a single cell in a downlink semi-persistent scheduling scenario or an uplink configured grant scenario. 
 
     
     
       23. The method of  claim 22 , wherein the single cell is based at least in part on a cell configured with downlink semi-persistent scheduling or configured with an uplink configured grant from the set of cells for which the DCI format for shared channel scheduling is associated. 
     
     
       24. The method of  claim 22 , wherein the single cell is based at least in part on a received indication of the single cell. 
     
     
       25. The method of  claim 21 , wherein the CS-RNTI satisfies the CRC, and
 wherein the DCI is configured for activation, release, or retransmission for one or more cells in a downlink semi-persistent scheduling scenario or an uplink configured grant scenario. 
 
     
     
       26. The method of  claim 25 , wherein at least one of:
 the one or more cells is based at least in part on a subset of one or more cells from the set of cells for which the DCI format for shared channel scheduling is associated, or 
 the one or more cells includes at least one cell other than a group of cells monitored for receiving the DCI. 
 
     
     
       27. A user equipment (UE) for wireless communication, comprising:
 a memory; and 
 one or more processors, coupled to the memory, configured to:
 receive downlink control information (DCI) associated with a DCI format for shared channel scheduling on a set of cells, wherein the DCI is associated with a cell radio network temporary identifier (C-RNTI) and a configured scheduling radio network temporary identifier (CS-RNTI), and wherein the DCI format includes a carrier indicator field corresponding to the C-RNTI and the CS-RNTI; and 
 decode the DCI to identify a scheduling on the set of cells or to identify downlink feedback information (DFI) based at least in part on a determination of whether the C-RNTI or the CS-RNTI satisfies a cyclic redundancy check (CRC). 
 
 
     
     
       28. The UE of  claim 27 , wherein the CS-RNTI satisfies the CRC, and
 wherein the DCI is configured for activation, release, or retransmission for a single cell in a downlink semi-persistent scheduling scenario or an uplink configured grant scenario. 
 
     
     
       29. A network entity for wireless communication, comprising:
 a memory; and 
 one or more processors, coupled to the memory, configured to:
 transmit, to a user equipment (UE), downlink control information (DCI) associated with a DCI format for shared channel scheduling on a set of cells, wherein the DCI is associated with a cell radio network temporary identifier (C-RNTI) and a configured scheduling radio network temporary identifier (CS-RNTI), and wherein the DCI format includes a carrier indicator field corresponding to the C-RNTI and the CS-RNTI; and 
 communicate with the UE based at least in part on a scheduling on the set of cells or downlink feedback information (DFI) decoded from the DCI based at least in part on a whether the C-RNTI or the CS-RNTI satisfies a cyclic redundancy check (CRC). 
 
 
     
     
       30. The network entity of  claim 29 , wherein the CS-RNTI satisfies the CRC, and
 wherein the DCI is configured for activation, release, or retransmission for a single cell in a downlink semi-persistent scheduling scenario or an uplink configured grant scenario.